<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .center {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh; /* 设置高度，使div居中 */
        }
    </style>
</head>
<body>

<div class="center">
    <!-- 这里是你的div内容 -->
    <h4 style="color: red">注册成功</h4> <br>
    <h5> <a href="/to_dsvs_login"  style="color: blue">去登陆 </a> </h5>
</div>


</body>
</html>